|
Semtech Corporation |
ADVANCED COMMUNICATION & SENSING PRODUCTS
SX1701B
www.DataSheet4U.com
SX1701B – Datasheet
Highly linear wideband LNA
Multi-channel, single-ended to differential conversion
GENERAL DESCRIPTION
The SX1701B is an integrated LNA operating over a
wide frequency range from 40 MHz to 2.5 GHz. It is
optimized for high OIP2 and OIP3 with minimum current
consumption. It also performs a single-ended to
differential conversion.
Two independent output channels are available and the
gain of each may be adjusted independently.
APPLICATIONS
• Digital Set Top Boxes (Satellite and Terrestrial)
• CATV Distribution Systems
• Active Splitter
• Data Communications Systems
• Active Balun
TYPICAL APPLICATION
KEY PRODUCT FEATURES
• Single-ended input / Dual differential outputs
• Independent programmable gain for each channel: 6,
12 and 18 dB
• High Linearity: OIP2 of 57 dBm and OIP3 of 22 dBm
• Noise Figure of 7 dB
• 75 Ω Input impedance
• 100 Ω differential output impedance
• Current consumption of 130 mA with one channel
enabled
• ESD protection (Normal ESD handling procedures
should be observed)
• Very small package: MLPQ-16, 4 mm x 4 mm
(equivalent to QFN-16, 4 mm x 4 mm)
ORDERING INFORMATION
Part number
Temperature range Package
SX1701BI085TRT
-40 °C to +85 °C
Lead Free
MLPQ-16
Note: This device is WEEE and RoHS compliant.
RF IN
+ 5.0 V
SX1701B
VDD2
VDD1
GND
G2(1:0)
OUTP2
OUTM2
IN
DEC
G1(1:0)
OUTP1
OUTM1
TV
Tuner
Silicon Tuner
DVR
Tuner
V1.11_STD – August 26th, 2008
Gain control
1/13
www.semtech.com
ADVANCED COMMUNICATION & SENSING PRODUCTS
SX1701B
www.DaDtaaSthaesehte4eU.tcom
TABLE OF CONTENTS
1
2
2.1.1
2.1.2
3
3.1
3.2
3.2.1
3.2.2
3.3
4
5
5.1
6
7
8
Simplified Block Diagram..............................................................................................................................3
Pin Description...............................................................................................................................................4
Pin Connections...............................................................................................................................................4
Gain Control Pins.............................................................................................................................................4
Electrical Characteristics ..............................................................................................................................5
Absolute Maximum Ratings .............................................................................................................................5
Specifications ...................................................................................................................................................5
Operating Range..............................................................................................................................................5
Electrical Specifications ...................................................................................................................................6
Typical Operating Characteristics....................................................................................................................7
Application Information.................................................................................................................................9
Application Example....................................................................................................................................10
Single-Ended Input to 1 Differential Outputs with Loop-through Single-Ended OUTPUT.............................10
Package Outline Drawing............................................................................................................................11
Marking Information ....................................................................................................................................11
Land Pattern Drawing..................................................................................................................................12
V1.11_STD – August 26th, 2008
2/13
www.semtech.com
|